What is Earnings Per Share (EPS)?

Definition

Earnings Per Share (EPS) measures the net profit a company allocates to each outstanding share of common stock. It is the denominator of the Price-to-Earnings ratio and one of the most widely cited metrics in corporate finance. Value investors look beyond the headline EPS at its quality, trajectory, and the cash earnings it represents.

Two flavours of EPS are reported on every income statement: basic and diluted. Basic EPS uses only currently outstanding shares; diluted EPS reflects the dilution that would occur if all in-the-money options, restricted stock units, and convertible securities were exercised. Diluted EPS is the more conservative and is the standard figure used in the P/E ratio, in analyst comparisons, and in valuation models.

Formula

Annual reports also disclose “EPS attributable to common shareholders” and “EPS from continuing operations”. For trend analysis, use EPS from continuing operations — it strips out discontinued business lines and gives a cleaner picture of the ongoing earnings power.

Worked example: Apple Inc. (AAPL)

Take an Apple snapshot with trailing twelve-month net income of approximately $97B, no preferred stock, weighted average basic shares of roughly 15.45B, and weighted average diluted shares of 15.55B. [TODO: verify against the latest /stock/AAPL feed before publishing.]

Apple’s diluted EPS of approximately $6.24 is the figure used in the headline trailing P/E. At a share price of about $190, the trailing P/E lands around 30x. The key quality check: compare this EPS to Apple’s trailing Free Cash Flow per Share. The two figures should be in the same ballpark for a mature, capital-light business; a sustained gap of more than 20 percent calls for a closer look at deferred revenue, stock-based compensation add-backs, and working capital movement.

Calculate EPS

Enter net income, preferred dividends, and the weighted average diluted share count. The calculator returns diluted EPS and a flag based on broad-market context.

For full historical EPS series and a 5-year CAGR, see the per-ticker pages on the Stock Screener.

EPS growth bands by industry

The absolute level of EPS tells you little — Berkshire Hathaway’s class A EPS is in the thousands of dollars per share, but it does not make the stock expensive. What matters is the growth rate and the quality. The table below shows typical 5-year EPS CAGR bands by US sector.

EPS vs related per-share metrics

EPS sits in a family of per-share earnings measures. The table compares it with the other denominators value investors most commonly track.

How value investors use EPS

Value investors treat EPS not as a destination but as a starting point. Three disciplines turn a raw EPS figure into a useful research signal. First, look at the 10-year trajectory rather than any single year. A company posting record EPS in a cyclical peak year tells you almost nothing; the same company’s 10-year average EPS, run through a normalised P/E, gives a far more defensible valuation anchor. Joel Greenblatt’s research showed that combining a normalised earnings yield with a high Return on Capital screen consistently outperformed the broad market.

Second, decompose EPS growth into its drivers: revenue growth, margin expansion, interest expense, taxes, and buybacks. EPS growth driven entirely by buybacks above intrinsic value is not the same thing as EPS growth driven by operating leverage and new customers. Decomposition is a few clicks on the ValueMarkers Screener and the ticker page financial-trends tab — flat revenue with rising EPS warrants a careful reading.

Third, cross-check EPS against Free Cash Flow per Share over rolling 5-year windows. For an asset-light, mature business, the two should converge. When they diverge for extended periods — EPS persistently above FCF per share — accruals are doing the work, and a closer read of working capital, deferred revenue, and stock-based compensation is justified. This is the basis of the EPS Quality indicator on the ValueMarkers methodology page.

[Javier insight: When I see a stock trading at a 10x P/E, my first instinct is not “cheap”. It is “what is wrong with the next year of earnings?” Half the time the market is wrong and the EPS is durable. Half the time the market is ahead of consensus and the E is about to drop 30 percent. The cash flow statement usually tells me which side of that coin I am on long before the next earnings call.]

Frequently asked questions

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